Improvement in feeding devices for sewing-machines



M; ROSE.

Feeding Device-for Sewing-Machine.

No.I66,302.

Patented Aug. 3,1875.

Wizzass as MFETERP, PNOTOMTHOGRAPM and b its needle.

U NITED STATES PATENT OFFICE.

ISRAEL M. Ross, OF BROOK HAVEN, ASSIGNOR TO JOSEPH L wnsr, on NEW YORK,N. Y.

IMPROVEMENT IN FEEDING DEVICES FOR SEWING-MACHINES.

Specification forming part of Letters Patent No. 166,302, dated August3, 1875; application filed November 19, 1874.

To all whom it may concern:

Be it known that I, ISRAEL M. BO SE, of Brook Haven, in the county ofSuffolk and State of New York, have invented certain new and usefulImprovements in Feeding Devices for Sewing-Machines; and I do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the accompanying drawing forming partof this specification, and in which- Figure 1 represents a sectionalelevation of my improved feeding device in its relation with the needle;Fig. 2, a horizontal section, mainly on the line w an; and Fig. 3, ahorizontal section on the line y 3 This invention relates to what areknown as top feeds, and consists in a feeding device which is operatedby the needle-bar, and is made capable of universal adjustment byrotating it around the needle-bar, to feed the fabric in any desireddirection. The invention also consists in certain combinations of parts,whereby said feeding device has its ef- -ficienoyinsured, and a certainyielding presser,

which controls the feeding-dog, also serves to hold the cloth during theback motion of the feed.

A is the needle-bar of a sewing-machine, O is the top surface of thecloth-table, and D the presser-foot bar. Attached to the lower end ofthe bar I), in an adjustable manner up or down by a screw, 0, is aplate, E, constructed to form a ring, to which the axis of the needle isconcentric.

.This ring-plate carries the feed, or rather a carrier, F, to which thefeeding devices are attached. Said feed-carrier F is fitted to turnwithin the ring-plate E, the same rotating or being capable ofadjustment around the needle-bar, and having a hole 01, through itscenter, to allow of the needle-bar passing through it. G is a leverarranged on one side of the hole d, and having its fulcrum e in or onthe feed carrier, and so that said lever, which extends both above andbelow such carrier, is free to rock within the latter. The

upper portion of this lever G is beveled, as at f, and is projectedforward by a spring, g, toward the needle-bar, and is forced backward oroutward by the needle-bar in its descent, or a projection on said bar,coming in contact with the beveled portion fof the lever. H is thefeeding-dog, which is pivoted at s to the lower end of the lever Gr, andis held down to its hold on the cloth, when feeding or moving forward,by an elastic or yielding presser, I. Said dog is moved forward, toeffect the feed of the cloth, by the downward action of the needle-baron the beveled portion f of the lever G.

The yielding presser I is here represented as formed of springs attachedat their one end to projections Kon the under side of the feed-carrierF, and from thence are bent and spread laterally, so as to have anextended bearing on theeloth when not resting on the dog, and so thatwhen the dog is making its feed or forward stroke the front bent ends ofthe yielding presser bear down on cars m m of the dog, to give thelatter its hold on the cloth.

As the feeding-dog H reaches the end of its forwardor feeding stroke,the ears m m.

pass from under and in front of the forward bent ends of the yieldingpresser I, which latter then bears directly on the cloth, to hold itfrom moving, while the dog, by its ears m m, freely rides over the bentfront ends of the presser, and, so soon as said ears clear such forwardbent ends of the yielding presser, the dog drops down onto the clothagain, to, in due course, make another feed, by passing under theforward ends of the presser.

The yielding presser I, as thus combined with the feeding-dog, not onlycontrols the hold of the dog on the cloth when feeding, and provides forits release when moving backward, but it virtually forms a springpresser-foot, that is automatically controlled by the dog, and always inline with it, no matter in which direction the feed works.

An independent presser-foot, however, may be used in addition, ifdesired; also, the control of the dog, as regards its hold on andrelease from the cloth, may be otherwise obtained without affecting theuniversality of the feed, to work in any desired direction, by suitablyrotating or adjusting the feed-carrier F around the needle-bar.

I claim- 1. lhe coinbiimtion, with the feed-carrier F, constructed torotate in a horizontal plane around the needle-bar, of the lever G,pivoled to the feed-carrier, the dog H, and the yielding presser 1,substantially as and for the purpose described.

2. The combination of the dog H, pivoted to the rocking lever G, andhaving the ears m, with the spring-presser I, constructed-of springsattached at one end to the projections K on the carrier, substantiallyas and for the purpose described.

I. M. ROSE.

Witnesses:

HENRY T. BROWN, MICHAEL RYAN.

